I'm having a problem with a high pitch squeal when I have my HX Stomp and iRig both connected to USB.
What I'm trying to do is this...
Mic -> iRig Pro DUO (line 1)
Guitar -> HX Stomp -> iRig Pro DUO (line 2)
Headphone to iRig headphone output.
It works great, and it's nice to be able to use Helix Native along with the stomp, but I have to unplug USB from the HX Stomp every time I want to play this way because when it's plugged in I get a high pitch squeal. The squeal doesn't exist if I leave everything hooked up and run my headphones directly from the Stomp, so it's not getting introduced in the effects loop.
It seems like it's a kindof feedback effect from my USB.
Just hoping someone else has figured out what it is, and how to get rid of it.
Thanks.